1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * Driver for Xceive XC5000 "QAM/8VSB single chip tuner" 4 * 5 * Copyright (c) 2007 Xceive Corporation 6 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> 7 * Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com> 8 */ 9 10#include <linux/module.h> 11#include <linux/moduleparam.h> 12#include <linux/videodev2.h> 13#include <linux/delay.h> 14#include <linux/workqueue.h> 15#include <linux/dvb/frontend.h> 16#include <linux/i2c.h> 17 18#include <media/dvb_frontend.h> 19 20#include "xc5000.h" 21#include "tuner-i2c.h" 22 23static int debug; 24module_param(debug, int, 0644); 25MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); 26 27static int no_poweroff; 28module_param(no_poweroff, int, 0644); 29MODULE_PARM_DESC(no_poweroff, "0 (default) powers device off when not used.\n" 30 "\t\t1 keep device energized and with tuner ready all the times.\n" 31 "\t\tFaster, but consumes more power and keeps the device hotter"); 32 33static DEFINE_MUTEX(xc5000_list_mutex); 34static LIST_HEAD(hybrid_tuner_instance_list); 35 36#define dprintk(level, fmt, arg...) if (debug >= level) \ 37 printk(KERN_INFO "%s: " fmt, "xc5000", ## arg) 38 39struct xc5000_priv { 40 struct tuner_i2c_props i2c_props; 41 struct list_head hybrid_tuner_instance_list; 42 43 u32 if_khz; 44 u16 xtal_khz; 45 u32 freq_hz, freq_offset; 46 u32 bandwidth; 47 u8 video_standard; 48 unsigned int mode; 49 u8 rf_mode; 50 u8 radio_input; 51 u16 output_amp; 52 53 int chip_id; 54 u16 pll_register_no; 55 u8 init_status_supported; 56 u8 fw_checksum_supported; 57 58 struct dvb_frontend *fe; 59 struct delayed_work timer_sleep; 60 61 const struct firmware *firmware; 62}; 63 64/* Misc Defines */ 65#define MAX_TV_STANDARD 24 66#define XC_MAX_I2C_WRITE_LENGTH 64 67 68/* Time to suspend after the .sleep callback is called */ 69#define XC5000_SLEEP_TIME 5000 /* ms */ 70 71/* Signal Types */ 72#define XC_RF_MODE_AIR 0 73#define XC_RF_MODE_CABLE 1 74 75/* Product id */ 76#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000 77#define XC_PRODUCT_ID_FW_LOADED 0x1388 78 79/* Registers */ 80#define XREG_INIT 0x00 81#define XREG_VIDEO_MODE 0x01 82#define XREG_AUDIO_MODE 0x02 83#define XREG_RF_FREQ 0x03 84#define XREG_D_CODE 0x04 85#define XREG_IF_OUT 0x05 86#define XREG_SEEK_MODE 0x07 87#define XREG_POWER_DOWN 0x0A /* Obsolete */ 88/* Set the output amplitude - SIF for analog, DTVP/DTVN for digital */ 89#define XREG_OUTPUT_AMP 0x0B 90#define XREG_SIGNALSOURCE 0x0D /* 0=Air, 1=Cable */ 91#define XREG_SMOOTHEDCVBS 0x0E 92#define XREG_XTALFREQ 0x0F 93#define XREG_FINERFREQ 0x10 94#define XREG_DDIMODE 0x11 95 96#define XREG_ADC_ENV 0x00 97#define XREG_QUALITY 0x01 98#define XREG_FRAME_LINES 0x02 99#define XREG_HSYNC_FREQ 0x03 100#define XREG_LOCK 0x04 101#define XREG_FREQ_ERROR 0x05 102#define XREG_SNR 0x06 103#define XREG_VERSION 0x07 104#define XREG_PRODUCT_ID 0x08 105#define XREG_BUSY 0x09 106#define XREG_BUILD 0x0D 107#define XREG_TOTALGAIN 0x0F 108#define XREG_FW_CHECKSUM 0x12 109#define XREG_INIT_STATUS 0x13 110 111/* 112 Basic firmware description. This will remain with 113 the driver for documentation purposes. 114 115 This represents an I2C firmware file encoded as a 116 string of unsigned char. Format is as follows: 117 118 char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB 119 char[1 ]=len0_LSB -> length of first write transaction 120 char[2 ]=data0 -> first byte to be sent 121 char[3 ]=data1 122 char[4 ]=data2 123 char[ ]=... 124 char[M ]=dataN -> last byte to be sent 125 char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB 126 char[M+2]=len1_LSB -> length of second write transaction 127 char[M+3]=data0 128 char[M+4]=data1 129 ... 130 etc. 131 132 The [len] value should be interpreted as follows: 133 134 len= len_MSB _ len_LSB 135 len=1111_1111_1111_1111 : End of I2C_SEQUENCE 136 len=0000_0000_0000_0000 : Reset command: Do hardware reset 137 len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767) 138 len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms 139 140 For the RESET and WAIT commands, the two following bytes will contain 141 immediately the length of the following transaction. 142 143*/ 144struct XC_TV_STANDARD { 145 char *name; 146 u16 audio_mode; 147 u16 video_mode; 148}; 149 150/* Tuner standards */ 151#define MN_NTSC_PAL_BTSC 0 152#define MN_NTSC_PAL_A2 1 153#define MN_NTSC_PAL_EIAJ 2 154#define MN_NTSC_PAL_MONO 3 155#define BG_PAL_A2 4 156#define BG_PAL_NICAM 5 157#define BG_PAL_MONO 6 158#define I_PAL_NICAM 7 159#define I_PAL_NICAM_MONO 8 160#define DK_PAL_A2 9 161#define DK_PAL_NICAM 10 162#define DK_PAL_MONO 11 163#define DK_SECAM_A2DK1 12 164#define DK_SECAM_A2LDK3 13 165#define DK_SECAM_A2MONO 14 166#define L_SECAM_NICAM 15 167#define LC_SECAM_NICAM 16 168#define DTV6 17 169#define DTV8 18 170#define DTV7_8 19 171#define DTV7 20 172#define FM_RADIO_INPUT2 21 173#define FM_RADIO_INPUT1 22 174#define FM_RADIO_INPUT1_MONO 23 175 176static struct XC_TV_STANDARD xc5000_standard[MAX_TV_STANDARD] = { 177 {"M/N-NTSC/PAL-BTSC", 0x0400, 0x8020}, 178 {"M/N-NTSC/PAL-A2", 0x0600, 0x8020}, 179 {"M/N-NTSC/PAL-EIAJ", 0x0440, 0x8020}, 180 {"M/N-NTSC/PAL-Mono", 0x0478, 0x8020}, 181 {"B/G-PAL-A2", 0x0A00, 0x8049}, 182 {"B/G-PAL-NICAM", 0x0C04, 0x8049}, 183 {"B/G-PAL-MONO", 0x0878, 0x8059}, 184 {"I-PAL-NICAM", 0x1080, 0x8009}, 185 {"I-PAL-NICAM-MONO", 0x0E78, 0x8009}, 186 {"D/K-PAL-A2", 0x1600, 0x8009}, 187 {"D/K-PAL-NICAM", 0x0E80, 0x8009}, 188 {"D/K-PAL-MONO", 0x1478, 0x8009}, 189 {"D/K-SECAM-A2 DK1", 0x1200, 0x8009}, 190 {"D/K-SECAM-A2 L/DK3", 0x0E00, 0x8009}, 191 {"D/K-SECAM-A2 MONO", 0x1478, 0x8009}, 192 {"L-SECAM-NICAM", 0x8E82, 0x0009}, 193 {"L'-SECAM-NICAM", 0x8E82, 0x4009}, 194 {"DTV6", 0x00C0, 0x8002}, 195 {"DTV8", 0x00C0, 0x800B}, 196 {"DTV7/8", 0x00C0, 0x801B}, 197 {"DTV7", 0x00C0, 0x8007}, 198 {"FM Radio-INPUT2", 0x9802, 0x9002}, 199 {"FM Radio-INPUT1", 0x0208, 0x9002}, 200 {"FM Radio-INPUT1_MONO", 0x0278, 0x9002} 201}; 202 203 204struct xc5000_fw_cfg { 205 char *name; 206 u16 size; 207 u16 pll_reg; 208 u8 init_status_supported; 209 u8 fw_checksum_supported; 210}; 211 212#define XC5000A_FIRMWARE "dvb-fe-xc5000-1.6.114.fw" 213static const struct xc5000_fw_cfg xc5000a_1_6_114 = { 214 .name = XC5000A_FIRMWARE, 215 .size = 12401, 216 .pll_reg = 0x806c, 217}; 218 219#define XC5000C_FIRMWARE "dvb-fe-xc5000c-4.1.30.7.fw" 220static const struct xc5000_fw_cfg xc5000c_41_024_5 = { 221 .name = XC5000C_FIRMWARE, 222 .size = 16497, 223 .pll_reg = 0x13, 224 .init_status_supported = 1, 225 .fw_checksum_supported = 1, 226}; 227 228static inline const struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id) 229{ 230 switch (chip_id) { 231 default: 232 case XC5000A: 233 return &xc5000a_1_6_114; 234 case XC5000C: 235 return &xc5000c_41_024_5; 236 } 237} 238 239static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe, int force); 240static int xc5000_is_firmware_loaded(struct dvb_frontend *fe); 241static int xc5000_readreg(struct xc5000_priv *priv, u16 reg, u16 *val); 242static int xc5000_tuner_reset(struct dvb_frontend *fe); 243 244static int xc_send_i2c_data(struct xc5000_priv *priv, u8 *buf, int len) 245{ 246 struct i2c_msg msg = { .addr = priv->i2c_props.addr, 247 .flags = 0, .buf = buf, .len = len }; 248 249 if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) { 250 printk(KERN_ERR "xc5000: I2C write failed (len=%i)\n", len); 251 return -EREMOTEIO; 252 } 253 return 0; 254} 255 256#if 0 257/* This routine is never used because the only time we read data from the 258 i2c bus is when we read registers, and we want that to be an atomic i2c 259 transaction in case we are on a multi-master bus */ 260static int xc_read_i2c_data(struct xc5000_priv *priv, u8 *buf, int len) 261{ 262 struct i2c_msg msg = { .addr = priv->i2c_props.addr, 263 .flags = I2C_M_RD, .buf = buf, .len = len }; 264 265 if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) { 266 printk(KERN_ERR "xc5000 I2C read failed (len=%i)\n", len); 267 return -EREMOTEIO; 268 } 269 return 0; 270} 271#endif 272 273static int xc5000_readreg(struct xc5000_priv *priv, u16 reg, u16 *val) 274{ 275 u8 buf[2] = { reg >> 8, reg & 0xff }; 276 u8 bval[2] = { 0, 0 }; 277 struct i2c_msg msg[2] = { 278 { .addr = priv->i2c_props.addr, 279 .flags = 0, .buf = &buf[0], .len = 2 }, 280 { .addr = priv->i2c_props.addr, 281 .flags = I2C_M_RD, .buf = &bval[0], .len = 2 }, 282 }; 283 284 if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) { 285 printk(KERN_WARNING "xc5000: I2C read failed\n"); 286 return -EREMOTEIO; 287 } 288 289 *val = (bval[0] << 8) | bval[1]; 290 return 0; 291} 292 293static int xc5000_tuner_reset(struct dvb_frontend *fe) 294{ 295 struct xc5000_priv *priv = fe->tuner_priv; 296 int ret; 297 298 dprintk(1, "%s()\n", __func__); 299 300 if (fe->callback) { 301 ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ? 302 fe->dvb->priv : 303 priv->i2c_props.adap->algo_data, 304 DVB_FRONTEND_COMPONENT_TUNER, 305 XC5000_TUNER_RESET, 0); 306 if (ret) { 307 printk(KERN_ERR "xc5000: reset failed\n"); 308 return ret; 309 } 310 } else { 311 printk(KERN_ERR "xc5000: no tuner reset callback function, fatal\n"); 312 return -EINVAL; 313 } 314 return 0; 315} 316 317static int xc_write_reg(struct xc5000_priv *priv, u16 reg_addr, u16 i2c_data) 318{ 319 u8 buf[4]; 320 int watch_dog_timer = 100; 321 int result; 322 323 buf[0] = (reg_addr >> 8) & 0xFF; 324 buf[1] = reg_addr & 0xFF; 325 buf[2] = (i2c_data >> 8) & 0xFF; 326 buf[3] = i2c_data & 0xFF; 327 result = xc_send_i2c_data(priv, buf, 4); 328 if (result == 0) { 329 /* wait for busy flag to clear */ 330 while ((watch_dog_timer > 0) && (result == 0)) { 331 result = xc5000_readreg(priv, XREG_BUSY, (u16 *)buf); 332 if (result == 0) { 333 if ((buf[0] == 0) && (buf[1] == 0)) { 334 /* busy flag cleared */ 335 break; 336 } else { 337 msleep(5); /* wait 5 ms */ 338 watch_dog_timer--; 339 } 340 } 341 } 342 } 343 if (watch_dog_timer <= 0) 344 result = -EREMOTEIO; 345 346 return result; 347} 348 349static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence) 350{ 351 struct xc5000_priv *priv = fe->tuner_priv; 352 353 int i, nbytes_to_send, result; 354 unsigned int len, pos, index; 355 u8 buf[XC_MAX_I2C_WRITE_LENGTH]; 356 357 index = 0; 358 while ((i2c_sequence[index] != 0xFF) || 359 (i2c_sequence[index + 1] != 0xFF)) { 360 len = i2c_sequence[index] * 256 + i2c_sequence[index+1]; 361 if (len == 0x0000) { 362 /* RESET command */ 363 result = xc5000_tuner_reset(fe); 364 index += 2; 365 if (result != 0) 366 return result; 367 } else if (len & 0x8000) { 368 /* WAIT command */ 369 msleep(len & 0x7FFF); 370 index += 2; 371 } else { 372 /* Send i2c data whilst ensuring individual transactions 373 * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes. 374 */ 375 index += 2; 376 buf[0] = i2c_sequence[index]; 377 buf[1] = i2c_sequence[index + 1]; 378 pos = 2; 379 while (pos < len) { 380 if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2) 381 nbytes_to_send = 382 XC_MAX_I2C_WRITE_LENGTH; 383 else 384 nbytes_to_send = (len - pos + 2); 385 for (i = 2; i < nbytes_to_send; i++) { 386 buf[i] = i2c_sequence[index + pos + 387 i - 2]; 388 } 389 result = xc_send_i2c_data(priv, buf, 390 nbytes_to_send); 391 392 if (result != 0) 393 return result; 394 395 pos += nbytes_to_send - 2; 396 } 397 index += len; 398 } 399 } 400 return 0; 401} 402 403static int xc_initialize(struct xc5000_priv *priv) 404{ 405 dprintk(1, "%s()\n", __func__); 406 return xc_write_reg(priv, XREG_INIT, 0); 407} 408 409static int xc_set_tv_standard(struct xc5000_priv *priv, 410 u16 video_mode, u16 audio_mode, u8 radio_mode) 411{ 412 int ret; 413 dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, video_mode, audio_mode); 414 if (radio_mode) { 415 dprintk(1, "%s() Standard = %s\n", 416 __func__, 417 xc5000_standard[radio_mode].name); 418 } else { 419 dprintk(1, "%s() Standard = %s\n", 420 __func__, 421 xc5000_standard[priv->video_standard].name); 422 } 423 424 ret = xc_write_reg(priv, XREG_VIDEO_MODE, video_mode); 425 if (ret == 0) 426 ret = xc_write_reg(priv, XREG_AUDIO_MODE, audio_mode); 427 428 return ret; 429} 430 431static int xc_set_signal_source(struct xc5000_priv *priv, u16 rf_mode) 432{ 433 dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode, 434 rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE"); 435 436 if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) { 437 rf_mode = XC_RF_MODE_CABLE; 438 printk(KERN_ERR 439 "%s(), Invalid mode, defaulting to CABLE", 440 __func__); 441 } 442 return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode); 443} 444 445static const struct dvb_tuner_ops xc5000_tuner_ops; 446 447static int xc_set_rf_frequency(struct xc5000_priv *priv, u32 freq_hz) 448{ 449 u16 freq_code; 450 451 dprintk(1, "%s(%u)\n", __func__, freq_hz); 452 453 if ((freq_hz > xc5000_tuner_ops.info.frequency_max_hz) || 454 (freq_hz < xc5000_tuner_ops.info.frequency_min_hz)) 455 return -EINVAL; 456 457 freq_code = (u16)(freq_hz / 15625); 458 459 /* Starting in firmware version 1.1.44, Xceive recommends using the 460 FINERFREQ for all normal tuning (the doc indicates reg 0x03 should 461 only be used for fast scanning for channel lock) */ 462 return xc_write_reg(priv, XREG_FINERFREQ, freq_code); 463} 464 465 466static int xc_set_IF_frequency(struct xc5000_priv *priv, u32 freq_khz) 467{ 468 u32 freq_code = (freq_khz * 1024)/1000; 469 dprintk(1, "%s(freq_khz = %d) freq_code = 0x%x\n", 470 __func__, freq_khz, freq_code); 471 472 return xc_write_reg(priv, XREG_IF_OUT, freq_code); 473} 474 475 476static int xc_get_adc_envelope(struct xc5000_priv *priv, u16 *adc_envelope) 477{ 478 return xc5000_readreg(priv, XREG_ADC_ENV, adc_envelope); 479} 480 481static int xc_get_frequency_error(struct xc5000_priv *priv, u32 *freq_error_hz) 482{ 483 int result; 484 u16 reg_data; 485 u32 tmp; 486 487 result = xc5000_readreg(priv, XREG_FREQ_ERROR, ®_data); 488 if (result != 0) 489 return result; 490 491 tmp = (u32)reg_data; 492 (*freq_error_hz) = (tmp * 15625) / 1000; 493 return result; 494} 495 496static int xc_get_lock_status(struct xc5000_priv *priv, u16 *lock_status) 497{ 498 return xc5000_readreg(priv, XREG_LOCK, lock_status); 499} 500 501static int xc_get_version(struct xc5000_priv *priv, 502 u8 *hw_majorversion, u8 *hw_minorversion, 503 u8 *fw_majorversion, u8 *fw_minorversion) 504{ 505 u16 data; 506 int result; 507 508 result = xc5000_readreg(priv, XREG_VERSION, &data); 509 if (result != 0) 510 return result; 511 512 (*hw_majorversion) = (data >> 12) & 0x0F; 513 (*hw_minorversion) = (data >> 8) & 0x0F; 514 (*fw_majorversion) = (data >> 4) & 0x0F; 515 (*fw_minorversion) = data & 0x0F; 516 517 return 0; 518} 519 520static int xc_get_buildversion(struct xc5000_priv *priv, u16 *buildrev) 521{ 522 return xc5000_readreg(priv, XREG_BUILD, buildrev); 523} 524 525static int xc_get_hsync_freq(struct xc5000_priv *priv, u32 *hsync_freq_hz) 526{ 527 u16 reg_data; 528 int result; 529 530 result = xc5000_readreg(priv, XREG_HSYNC_FREQ, ®_data); 531 if (result != 0) 532 return result; 533 534 (*hsync_freq_hz) = ((reg_data & 0x0fff) * 763)/100; 535 return result; 536} 537 538static int xc_get_frame_lines(struct xc5000_priv *priv, u16 *frame_lines) 539{ 540 return xc5000_readreg(priv, XREG_FRAME_LINES, frame_lines); 541} 542 543static int xc_get_quality(struct xc5000_priv *priv, u16 *quality) 544{ 545 return xc5000_readreg(priv, XREG_QUALITY, quality); 546} 547 548static int xc_get_analogsnr(struct xc5000_priv *priv, u16 *snr) 549{ 550 return xc5000_readreg(priv, XREG_SNR, snr); 551} 552 553static int xc_get_totalgain(struct xc5000_priv *priv, u16 *totalgain) 554{ 555 return xc5000_readreg(priv, XREG_TOTALGAIN, totalgain); 556} 557 558#define XC_TUNE_ANALOG 0 559#define XC_TUNE_DIGITAL 1 560static int xc_tune_channel(struct xc5000_priv *priv, u32 freq_hz, int mode) 561{ 562 dprintk(1, "%s(%u)\n", __func__, freq_hz); 563 564 if (xc_set_rf_frequency(priv, freq_hz) != 0) 565 return -EREMOTEIO; 566 567 return 0; 568} 569 570static int xc_set_xtal(struct dvb_frontend *fe) 571{ 572 struct xc5000_priv *priv = fe->tuner_priv; 573 int ret = 0; 574 575 switch (priv->chip_id) { 576 default: 577 case XC5000A: 578 /* 32.000 MHz xtal is default */ 579 break; 580 case XC5000C: 581 switch (priv->xtal_khz) { 582 default: 583 case 32000: 584 /* 32.000 MHz xtal is default */ 585 break; 586 case 31875: 587 /* 31.875 MHz xtal configuration */ 588 ret = xc_write_reg(priv, 0x000f, 0x8081); 589 break; 590 } 591 break; 592 } 593 return ret; 594} 595 596static int xc5000_fwupload(struct dvb_frontend *fe, 597 const struct xc5000_fw_cfg *desired_fw, 598 const struct firmware *fw) 599{ 600 struct xc5000_priv *priv = fe->tuner_priv; 601 int ret; 602 603 /* request the firmware, this will block and timeout */ 604 dprintk(1, "waiting for firmware upload (%s)...\n", 605 desired_fw->name); 606 607 priv->pll_register_no = desired_fw->pll_reg; 608 priv->init_status_supported = desired_fw->init_status_supported; 609 priv->fw_checksum_supported = desired_fw->fw_checksum_supported; 610 611 612 dprintk(1, "firmware uploading...\n"); 613 ret = xc_load_i2c_sequence(fe, fw->data); 614 if (!ret) { 615 ret = xc_set_xtal(fe); 616 dprintk(1, "Firmware upload complete...\n"); 617 } else 618 printk(KERN_ERR "xc5000: firmware upload failed...\n"); 619 620 return ret; 621} 622 623static void xc_debug_dump(struct xc5000_priv *priv) 624{ 625 u16 adc_envelope; 626 u32 freq_error_hz = 0; 627 u16 lock_status; 628 u32 hsync_freq_hz = 0; 629 u16 frame_lines; 630 u16 quality; 631 u16 snr; 632 u16 totalgain; 633 u8 hw_majorversion = 0, hw_minorversion = 0; 634 u8 fw_majorversion = 0, fw_minorversion = 0; 635 u16 fw_buildversion = 0; 636 u16 regval; 637 638 /* Wait for stats to stabilize. 639 * Frame Lines needs two frame times after initial lock 640 * before it is valid. 641 */ 642 msleep(100); 643 644 xc_get_adc_envelope(priv, &adc_envelope); 645 dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope); 646 647 xc_get_frequency_error(priv, &freq_error_hz); 648 dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz); 649 650 xc_get_lock_status(priv, &lock_status); 651 dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n", 652 lock_status); 653 654 xc_get_version(priv, &hw_majorversion, &hw_minorversion, 655 &fw_majorversion, &fw_minorversion); 656 xc_get_buildversion(priv, &fw_buildversion); 657 dprintk(1, "*** HW: V%d.%d, FW: V %d.%d.%d\n", 658 hw_majorversion, hw_minorversion, 659 fw_majorversion, fw_minorversion, fw_buildversion); 660 661 xc_get_hsync_freq(priv, &hsync_freq_hz); 662 dprintk(1, "*** Horizontal sync frequency = %d Hz\n", hsync_freq_hz); 663 664 xc_get_frame_lines(priv, &frame_lines); 665 dprintk(1, "*** Frame lines = %d\n", frame_lines); 666 667 xc_get_quality(priv, &quality); 668 dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality & 0x07); 669 670 xc_get_analogsnr(priv, &snr); 671 dprintk(1, "*** Unweighted analog SNR = %d dB\n", snr & 0x3f); 672 673 xc_get_totalgain(priv, &totalgain); 674 dprintk(1, "*** Total gain = %d.%d dB\n", totalgain / 256, 675 (totalgain % 256) * 100 / 256); 676 677 if (priv->pll_register_no) { 678 if (!xc5000_readreg(priv, priv->pll_register_no, ®val)) 679 dprintk(1, "*** PLL lock status = 0x%04x\n", regval); 680 } 681} 682 683static int xc5000_tune_digital(struct dvb_frontend *fe) 684{ 685 struct xc5000_priv *priv = fe->tuner_priv; 686 int ret; 687 u32 bw = fe->dtv_property_cache.bandwidth_hz; 688 689 ret = xc_set_signal_source(priv, priv->rf_mode); 690 if (ret != 0) { 691 printk(KERN_ERR 692 "xc5000: xc_set_signal_source(%d) failed\n", 693 priv->rf_mode); 694 return -EREMOTEIO; 695 } 696 697 ret = xc_set_tv_standard(priv, 698 xc5000_standard[priv->video_standard].video_mode, 699 xc5000_standard[priv->video_standard].audio_mode, 0); 700 if (ret != 0) { 701 printk(KERN_ERR "xc5000: xc_set_tv_standard failed\n"); 702 return -EREMOTEIO; 703 } 704 705 ret = xc_set_IF_frequency(priv, priv->if_khz); 706 if (ret != 0) { 707 printk(KERN_ERR "xc5000: xc_Set_IF_frequency(%d) failed\n", 708 priv->if_khz); 709 return -EIO; 710 } 711 712 dprintk(1, "%s() setting OUTPUT_AMP to 0x%x\n", 713 __func__, priv->output_amp); 714 xc_write_reg(priv, XREG_OUTPUT_AMP, priv->output_amp); 715 716 xc_tune_channel(priv, priv->freq_hz, XC_TUNE_DIGITAL); 717 718 if (debug) 719 xc_debug_dump(priv); 720 721 priv->bandwidth = bw; 722 723 return 0; 724} 725 726static int xc5000_set_digital_params(struct dvb_frontend *fe) 727{ 728 int b; 729 struct xc5000_priv *priv = fe->tuner_priv; 730 u32 bw = fe->dtv_property_cache.bandwidth_hz; 731 u32 freq = fe->dtv_property_cache.frequency; 732 u32 delsys = fe->dtv_property_cache.delivery_system; 733 734 if (xc_load_fw_and_init_tuner(fe, 0) != 0) { 735 dprintk(1, "Unable to load firmware and init tuner\n"); 736 return -EINVAL; 737 } 738 739 dprintk(1, "%s() frequency=%d (Hz)\n", __func__, freq); 740 741 switch (delsys) { 742 case SYS_ATSC: 743 dprintk(1, "%s() VSB modulation\n", __func__); 744 priv->rf_mode = XC_RF_MODE_AIR; 745 priv->freq_offset = 1750000; 746 priv->video_standard = DTV6; 747 break; 748 case SYS_DVBC_ANNEX_B: 749 dprintk(1, "%s() QAM modulation\n", __func__); 750 priv->rf_mode = XC_RF_MODE_CABLE; 751 priv->freq_offset = 1750000; 752 priv->video_standard = DTV6; 753 break; 754 case SYS_ISDBT: 755 /* All ISDB-T are currently for 6 MHz bw */ 756 if (!bw) 757 bw = 6000000; 758 /* fall to OFDM handling */ 759 fallthrough; 760 case SYS_DMBTH: 761 case SYS_DVBT: 762 case SYS_DVBT2: 763 dprintk(1, "%s() OFDM\n", __func__); 764 switch (bw) { 765 case 6000000: 766 priv->video_standard = DTV6; 767 priv->freq_offset = 1750000; 768 break; 769 case 7000000: 770 priv->video_standard = DTV7; 771 priv->freq_offset = 2250000; 772 break; 773 case 8000000: 774 priv->video_standard = DTV8; 775 priv->freq_offset = 2750000; 776 break; 777 default: 778 printk(KERN_ERR "xc5000 bandwidth not set!\n"); 779 return -EINVAL; 780 } 781 priv->rf_mode = XC_RF_MODE_AIR; 782 break; 783 case SYS_DVBC_ANNEX_A: 784 case SYS_DVBC_ANNEX_C: 785 dprintk(1, "%s() QAM modulation\n", __func__); 786 priv->rf_mode = XC_RF_MODE_CABLE; 787 if (bw <= 6000000) { 788 priv->video_standard = DTV6; 789 priv->freq_offset = 1750000; 790 b = 6; 791 } else if (bw <= 7000000) { 792 priv->video_standard = DTV7; 793 priv->freq_offset = 2250000; 794 b = 7; 795 } else { 796 priv->video_standard = DTV7_8; 797 priv->freq_offset = 2750000; 798 b = 8; 799 } 800 dprintk(1, "%s() Bandwidth %dMHz (%d)\n", __func__, 801 b, bw); 802 break; 803 default: 804 printk(KERN_ERR "xc5000: delivery system is not supported!\n"); 805 return -EINVAL; 806 } 807 808 priv->freq_hz = freq - priv->freq_offset; 809 priv->mode = V4L2_TUNER_DIGITAL_TV; 810 811 dprintk(1, "%s() frequency=%d (compensated to %d)\n", 812 __func__, freq, priv->freq_hz); 813 814 return xc5000_tune_digital(fe); 815} 816 817static int xc5000_is_firmware_loaded(struct dvb_frontend *fe) 818{ 819 struct xc5000_priv *priv = fe->tuner_priv; 820 int ret; 821 u16 id; 822 823 ret = xc5000_readreg(priv, XREG_PRODUCT_ID, &id); 824 if (!ret) { 825 if (id == XC_PRODUCT_ID_FW_NOT_LOADED) 826 ret = -ENOENT; 827 else 828 ret = 0; 829 dprintk(1, "%s() returns id = 0x%x\n", __func__, id); 830 } else { 831 dprintk(1, "%s() returns error %d\n", __func__, ret); 832 } 833 834 return ret; 835} 836 837static void xc5000_config_tv(struct dvb_frontend *fe, 838 struct analog_parameters *params) 839{ 840 struct xc5000_priv *priv = fe->tuner_priv; 841 842 dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", 843 __func__, params->frequency); 844 845 /* Fix me: it could be air. */ 846 priv->rf_mode = params->mode; 847 if (params->mode > XC_RF_MODE_CABLE) 848 priv->rf_mode = XC_RF_MODE_CABLE; 849 850 /* params->frequency is in units of 62.5khz */ 851 priv->freq_hz = params->frequency * 62500; 852 853 /* FIX ME: Some video standards may have several possible audio 854 standards. We simply default to one of them here. 855 */ 856 if (params->std & V4L2_STD_MN) { 857 /* default to BTSC audio standard */ 858 priv->video_standard = MN_NTSC_PAL_BTSC; 859 return; 860 } 861 862 if (params->std & V4L2_STD_PAL_BG) { 863 /* default to NICAM audio standard */ 864 priv->video_standard = BG_PAL_NICAM; 865 return; 866 } 867 868 if (params->std & V4L2_STD_PAL_I) { 869 /* default to NICAM audio standard */ 870 priv->video_standard = I_PAL_NICAM; 871 return; 872 } 873 874 if (params->std & V4L2_STD_PAL_DK) { 875 /* default to NICAM audio standard */ 876 priv->video_standard = DK_PAL_NICAM; 877 return; 878 } 879 880 if (params->std & V4L2_STD_SECAM_DK) { 881 /* default to A2 DK1 audio standard */ 882 priv->video_standard = DK_SECAM_A2DK1; 883 return; 884 } 885 886 if (params->std & V4L2_STD_SECAM_L) { 887 priv->video_standard = L_SECAM_NICAM; 888 return; 889 } 890 891 if (params->std & V4L2_STD_SECAM_LC) { 892 priv->video_standard = LC_SECAM_NICAM; 893 return; 894 } 895} 896 897static int xc5000_set_tv_freq(struct dvb_frontend *fe) 898{ 899 struct xc5000_priv *priv = fe->tuner_priv; 900 u16 pll_lock_status; 901 int ret; 902 903tune_channel: 904 ret = xc_set_signal_source(priv, priv->rf_mode); 905 if (ret != 0) { 906 printk(KERN_ERR 907 "xc5000: xc_set_signal_source(%d) failed\n", 908 priv->rf_mode); 909 return -EREMOTEIO; 910 } 911 912 ret = xc_set_tv_standard(priv, 913 xc5000_standard[priv->video_standard].video_mode, 914 xc5000_standard[priv->video_standard].audio_mode, 0); 915 if (ret != 0) { 916 printk(KERN_ERR "xc5000: xc_set_tv_standard failed\n"); 917 return -EREMOTEIO; 918 } 919 920 xc_write_reg(priv, XREG_OUTPUT_AMP, 0x09); 921 922 xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG); 923 924 if (debug) 925 xc_debug_dump(priv); 926 927 if (priv->pll_register_no != 0) { 928 msleep(20); 929 ret = xc5000_readreg(priv, priv->pll_register_no, 930 &pll_lock_status); 931 if (ret) 932 return ret; 933 if (pll_lock_status > 63) { 934 /* PLL is unlocked, force reload of the firmware */ 935 dprintk(1, "xc5000: PLL not locked (0x%x). Reloading...\n", 936 pll_lock_status); 937 if (xc_load_fw_and_init_tuner(fe, 1) != 0) { 938 printk(KERN_ERR "xc5000: Unable to reload fw\n"); 939 return -EREMOTEIO; 940 } 941 goto tune_channel; 942 } 943 } 944 945 return 0; 946} 947 948static int xc5000_config_radio(struct dvb_frontend *fe, 949 struct analog_parameters *params) 950 951{ 952 struct xc5000_priv *priv = fe->tuner_priv; 953 954 dprintk(1, "%s() frequency=%d (in units of khz)\n", 955 __func__, params->frequency); 956 957 if (priv->radio_input == XC5000_RADIO_NOT_CONFIGURED) { 958 dprintk(1, "%s() radio input not configured\n", __func__); 959 return -EINVAL; 960 } 961 962 priv->freq_hz = params->frequency * 125 / 2; 963 priv->rf_mode = XC_RF_MODE_AIR; 964 965 return 0; 966} 967 968static int xc5000_set_radio_freq(struct dvb_frontend *fe) 969{ 970 struct xc5000_priv *priv = fe->tuner_priv; 971 int ret; 972 u8 radio_input; 973 974 if (priv->radio_input == XC5000_RADIO_FM1) 975 radio_input = FM_RADIO_INPUT1; 976 else if (priv->radio_input == XC5000_RADIO_FM2) 977 radio_input = FM_RADIO_INPUT2; 978 else if (priv->radio_input == XC5000_RADIO_FM1_MONO) 979 radio_input = FM_RADIO_INPUT1_MONO; 980 else { 981 dprintk(1, "%s() unknown radio input %d\n", __func__, 982 priv->radio_input); 983 return -EINVAL; 984 } 985 986 ret = xc_set_tv_standard(priv, xc5000_standard[radio_input].video_mode, 987 xc5000_standard[radio_input].audio_mode, radio_input); 988 989 if (ret != 0) { 990 printk(KERN_ERR "xc5000: xc_set_tv_standard failed\n"); 991 return -EREMOTEIO; 992 } 993 994 ret = xc_set_signal_source(priv, priv->rf_mode); 995 if (ret != 0) { 996 printk(KERN_ERR 997 "xc5000: xc_set_signal_source(%d) failed\n", 998 priv->rf_mode); 999 return -EREMOTEIO; 1000 } 1001 1002 if ((priv->radio_input == XC5000_RADIO_FM1) || 1003 (priv->radio_input == XC5000_RADIO_FM2)) 1004 xc_write_reg(priv, XREG_OUTPUT_AMP, 0x09); 1005 else if (priv->radio_input == XC5000_RADIO_FM1_MONO) 1006 xc_write_reg(priv, XREG_OUTPUT_AMP, 0x06); 1007 1008 xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG); 1009 1010 return 0; 1011} 1012 1013static int xc5000_set_params(struct dvb_frontend *fe) 1014{ 1015 struct xc5000_priv *priv = fe->tuner_priv; 1016 1017 if (xc_load_fw_and_init_tuner(fe, 0) != 0) { 1018 dprintk(1, "Unable to load firmware and init tuner\n"); 1019 return -EINVAL; 1020 } 1021 1022 switch (priv->mode) { 1023 case V4L2_TUNER_RADIO: 1024 return xc5000_set_radio_freq(fe); 1025 case V4L2_TUNER_ANALOG_TV: 1026 return xc5000_set_tv_freq(fe); 1027 case V4L2_TUNER_DIGITAL_TV: 1028 return xc5000_tune_digital(fe); 1029 } 1030 1031 return 0; 1032} 1033 1034static int xc5000_set_analog_params(struct dvb_frontend *fe, 1035 struct analog_parameters *params) 1036{ 1037 struct xc5000_priv *priv = fe->tuner_priv; 1038 int ret; 1039 1040 if (priv->i2c_props.adap == NULL) 1041 return -EINVAL; 1042 1043 switch (params->mode) { 1044 case V4L2_TUNER_RADIO: 1045 ret = xc5000_config_radio(fe, params); 1046 if (ret) 1047 return ret; 1048 break; 1049 case V4L2_TUNER_ANALOG_TV: 1050 xc5000_config_tv(fe, params); 1051 break; 1052 default: 1053 break; 1054 } 1055 priv->mode = params->mode; 1056 1057 return xc5000_set_params(fe); 1058} 1059 1060static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq) 1061{ 1062 struct xc5000_priv *priv = fe->tuner_priv; 1063 dprintk(1, "%s()\n", __func__); 1064 *freq = priv->freq_hz + priv->freq_offset; 1065 return 0; 1066} 1067 1068static int xc5000_get_if_frequency(struct dvb_frontend *fe, u32 *freq) 1069{ 1070 struct xc5000_priv *priv = fe->tuner_priv; 1071 dprintk(1, "%s()\n", __func__); 1072 *freq = priv->if_khz * 1000; 1073 return 0; 1074} 1075 1076static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw) 1077{ 1078 struct xc5000_priv *priv = fe->tuner_priv; 1079 dprintk(1, "%s()\n", __func__); 1080 1081 *bw = priv->bandwidth; 1082 return 0; 1083} 1084 1085static int xc5000_get_status(struct dvb_frontend *fe, u32 *status) 1086{ 1087 struct xc5000_priv *priv = fe->tuner_priv; 1088 u16 lock_status = 0; 1089 1090 xc_get_lock_status(priv, &lock_status); 1091 1092 dprintk(1, "%s() lock_status = 0x%08x\n", __func__, lock_status); 1093 1094 *status = lock_status; 1095 1096 return 0; 1097} 1098 1099static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe, int force) 1100{ 1101 struct xc5000_priv *priv = fe->tuner_priv; 1102 const struct xc5000_fw_cfg *desired_fw = xc5000_assign_firmware(priv->chip_id); 1103 const struct firmware *fw; 1104 int ret, i; 1105 u16 pll_lock_status; 1106 u16 fw_ck; 1107 1108 cancel_delayed_work(&priv->timer_sleep); 1109 1110 if (!force && xc5000_is_firmware_loaded(fe) == 0) 1111 return 0; 1112 1113 if (!priv->firmware) { 1114 ret = request_firmware(&fw, desired_fw->name, 1115 priv->i2c_props.adap->dev.parent); 1116 if (ret) { 1117 pr_err("xc5000: Upload failed. rc %d\n", ret); 1118 return ret; 1119 } 1120 dprintk(1, "firmware read %zu bytes.\n", fw->size); 1121 1122 if (fw->size != desired_fw->size) { 1123 pr_err("xc5000: Firmware file with incorrect size\n"); 1124 release_firmware(fw); 1125 return -EINVAL; 1126 } 1127 priv->firmware = fw; 1128 } else 1129 fw = priv->firmware; 1130 1131 /* Try up to 5 times to load firmware */ 1132 for (i = 0; i < 5; i++) { 1133 if (i) 1134 printk(KERN_CONT " - retrying to upload firmware.\n"); 1135 1136 ret = xc5000_fwupload(fe, desired_fw, fw); 1137 if (ret != 0) 1138 goto err; 1139 1140 msleep(20); 1141 1142 if (priv->fw_checksum_supported) { 1143 if (xc5000_readreg(priv, XREG_FW_CHECKSUM, &fw_ck)) { 1144 printk(KERN_ERR 1145 "xc5000: FW checksum reading failed."); 1146 continue; 1147 } 1148 1149 if (!fw_ck) { 1150 printk(KERN_ERR 1151 "xc5000: FW checksum failed = 0x%04x.", 1152 fw_ck); 1153 continue; 1154 } 1155 } 1156 1157 /* Start the tuner self-calibration process */ 1158 ret = xc_initialize(priv); 1159 if (ret) { 1160 printk(KERN_ERR "xc5000: Can't request self-calibration."); 1161 continue; 1162 } 1163 1164 /* Wait for calibration to complete. 1165 * We could continue but XC5000 will clock stretch subsequent 1166 * I2C transactions until calibration is complete. This way we 1167 * don't have to rely on clock stretching working. 1168 */ 1169 msleep(100); 1170 1171 if (priv->init_status_supported) { 1172 if (xc5000_readreg(priv, XREG_INIT_STATUS, &fw_ck)) { 1173 printk(KERN_ERR 1174 "xc5000: FW failed reading init status."); 1175 continue; 1176 } 1177 1178 if (!fw_ck) { 1179 printk(KERN_ERR 1180 "xc5000: FW init status failed = 0x%04x.", 1181 fw_ck); 1182 continue; 1183 } 1184 } 1185 1186 if (priv->pll_register_no) { 1187 ret = xc5000_readreg(priv, priv->pll_register_no, 1188 &pll_lock_status); 1189 if (ret) 1190 continue; 1191 if (pll_lock_status > 63) { 1192 /* PLL is unlocked, force reload of the firmware */ 1193 printk(KERN_ERR 1194 "xc5000: PLL not running after fwload."); 1195 continue; 1196 } 1197 } 1198 1199 /* Default to "CABLE" mode */ 1200 ret = xc_write_reg(priv, XREG_SIGNALSOURCE, XC_RF_MODE_CABLE); 1201 if (!ret) 1202 break; 1203 printk(KERN_ERR "xc5000: can't set to cable mode."); 1204 } 1205 1206err: 1207 if (!ret) 1208 printk(KERN_INFO "xc5000: Firmware %s loaded and running.\n", 1209 desired_fw->name); 1210 else 1211 printk(KERN_CONT " - too many retries. Giving up\n"); 1212 1213 return ret; 1214} 1215 1216static void xc5000_do_timer_sleep(struct work_struct *timer_sleep) 1217{ 1218 struct xc5000_priv *priv =container_of(timer_sleep, struct xc5000_priv, 1219 timer_sleep.work); 1220 struct dvb_frontend *fe = priv->fe; 1221 int ret; 1222 1223 dprintk(1, "%s()\n", __func__); 1224 1225 /* According to Xceive technical support, the "powerdown" register 1226 was removed in newer versions of the firmware. The "supported" 1227 way to sleep the tuner is to pull the reset pin low for 10ms */ 1228 ret = xc5000_tuner_reset(fe); 1229 if (ret != 0) 1230 printk(KERN_ERR 1231 "xc5000: %s() unable to shutdown tuner\n", 1232 __func__); 1233} 1234 1235static int xc5000_sleep(struct dvb_frontend *fe) 1236{ 1237 struct xc5000_priv *priv = fe->tuner_priv; 1238 1239 dprintk(1, "%s()\n", __func__); 1240 1241 /* Avoid firmware reload on slow devices */ 1242 if (no_poweroff) 1243 return 0; 1244 1245 schedule_delayed_work(&priv->timer_sleep, 1246 msecs_to_jiffies(XC5000_SLEEP_TIME)); 1247 1248 return 0; 1249} 1250 1251static int xc5000_suspend(struct dvb_frontend *fe) 1252{ 1253 struct xc5000_priv *priv = fe->tuner_priv; 1254 int ret; 1255 1256 dprintk(1, "%s()\n", __func__); 1257 1258 cancel_delayed_work(&priv->timer_sleep); 1259 1260 ret = xc5000_tuner_reset(fe); 1261 if (ret != 0) 1262 printk(KERN_ERR 1263 "xc5000: %s() unable to shutdown tuner\n", 1264 __func__); 1265 1266 return 0; 1267} 1268 1269static int xc5000_resume(struct dvb_frontend *fe) 1270{ 1271 struct xc5000_priv *priv = fe->tuner_priv; 1272 1273 dprintk(1, "%s()\n", __func__); 1274 1275 /* suspended before firmware is loaded. 1276 Avoid firmware load in resume path. */ 1277 if (!priv->firmware) 1278 return 0; 1279 1280 return xc5000_set_params(fe); 1281} 1282 1283static int xc5000_init(struct dvb_frontend *fe) 1284{ 1285 struct xc5000_priv *priv = fe->tuner_priv; 1286 dprintk(1, "%s()\n", __func__); 1287 1288 if (xc_load_fw_and_init_tuner(fe, 0) != 0) { 1289 printk(KERN_ERR "xc5000: Unable to initialise tuner\n"); 1290 return -EREMOTEIO; 1291 } 1292 1293 if (debug) 1294 xc_debug_dump(priv); 1295 1296 return 0; 1297} 1298 1299static void xc5000_release(struct dvb_frontend *fe) 1300{ 1301 struct xc5000_priv *priv = fe->tuner_priv; 1302 1303 dprintk(1, "%s()\n", __func__); 1304 1305 mutex_lock(&xc5000_list_mutex); 1306 1307 if (priv) { 1308 cancel_delayed_work(&priv->timer_sleep); 1309 if (priv->firmware) { 1310 release_firmware(priv->firmware); 1311 priv->firmware = NULL; 1312 } 1313 hybrid_tuner_release_state(priv); 1314 } 1315 1316 mutex_unlock(&xc5000_list_mutex); 1317 1318 fe->tuner_priv = NULL; 1319} 1320 1321static int xc5000_set_config(struct dvb_frontend *fe, void *priv_cfg) 1322{ 1323 struct xc5000_priv *priv = fe->tuner_priv; 1324 struct xc5000_config *p = priv_cfg; 1325 1326 dprintk(1, "%s()\n", __func__); 1327 1328 if (p->if_khz) 1329 priv->if_khz = p->if_khz; 1330 1331 if (p->radio_input) 1332 priv->radio_input = p->radio_input; 1333 1334 if (p->output_amp) 1335 priv->output_amp = p->output_amp; 1336 1337 return 0; 1338} 1339 1340 1341static const struct dvb_tuner_ops xc5000_tuner_ops = { 1342 .info = { 1343 .name = "Xceive XC5000", 1344 .frequency_min_hz = 1 * MHz, 1345 .frequency_max_hz = 1023 * MHz, 1346 .frequency_step_hz = 50 * kHz, 1347 }, 1348 1349 .release = xc5000_release, 1350 .init = xc5000_init, 1351 .sleep = xc5000_sleep, 1352 .suspend = xc5000_suspend, 1353 .resume = xc5000_resume, 1354 1355 .set_config = xc5000_set_config, 1356 .set_params = xc5000_set_digital_params, 1357 .set_analog_params = xc5000_set_analog_params, 1358 .get_frequency = xc5000_get_frequency, 1359 .get_if_frequency = xc5000_get_if_frequency, 1360 .get_bandwidth = xc5000_get_bandwidth, 1361 .get_status = xc5000_get_status 1362}; 1363 1364struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, 1365 struct i2c_adapter *i2c, 1366 const struct xc5000_config *cfg) 1367{ 1368 struct xc5000_priv *priv = NULL; 1369 int instance; 1370 u16 id = 0; 1371 1372 dprintk(1, "%s(%d-%04x)\n", __func__, 1373 i2c ? i2c_adapter_id(i2c) : -1, 1374 cfg ? cfg->i2c_address : -1); 1375 1376 mutex_lock(&xc5000_list_mutex); 1377 1378 instance = hybrid_tuner_request_state(struct xc5000_priv, priv, 1379 hybrid_tuner_instance_list, 1380 i2c, cfg->i2c_address, "xc5000"); 1381 switch (instance) { 1382 case 0: 1383 goto fail; 1384 case 1: 1385 /* new tuner instance */ 1386 priv->bandwidth = 6000000; 1387 fe->tuner_priv = priv; 1388 priv->fe = fe; 1389 INIT_DELAYED_WORK(&priv->timer_sleep, xc5000_do_timer_sleep); 1390 break; 1391 default: 1392 /* existing tuner instance */ 1393 fe->tuner_priv = priv; 1394 break; 1395 } 1396 1397 if (priv->if_khz == 0) { 1398 /* If the IF hasn't been set yet, use the value provided by 1399 the caller (occurs in hybrid devices where the analog 1400 call to xc5000_attach occurs before the digital side) */ 1401 priv->if_khz = cfg->if_khz; 1402 } 1403 1404 if (priv->xtal_khz == 0) 1405 priv->xtal_khz = cfg->xtal_khz; 1406 1407 if (priv->radio_input == 0) 1408 priv->radio_input = cfg->radio_input; 1409 1410 /* don't override chip id if it's already been set 1411 unless explicitly specified */ 1412 if ((priv->chip_id == 0) || (cfg->chip_id)) 1413 /* use default chip id if none specified, set to 0 so 1414 it can be overridden if this is a hybrid driver */ 1415 priv->chip_id = (cfg->chip_id) ? cfg->chip_id : 0; 1416 1417 /* don't override output_amp if it's already been set 1418 unless explicitly specified */ 1419 if ((priv->output_amp == 0) || (cfg->output_amp)) 1420 /* use default output_amp value if none specified */ 1421 priv->output_amp = (cfg->output_amp) ? cfg->output_amp : 0x8a; 1422 1423 /* Check if firmware has been loaded. It is possible that another 1424 instance of the driver has loaded the firmware. 1425 */ 1426 if (xc5000_readreg(priv, XREG_PRODUCT_ID, &id) != 0) 1427 goto fail; 1428 1429 switch (id) { 1430 case XC_PRODUCT_ID_FW_LOADED: 1431 printk(KERN_INFO 1432 "xc5000: Successfully identified at address 0x%02x\n", 1433 cfg->i2c_address); 1434 printk(KERN_INFO 1435 "xc5000: Firmware has been loaded previously\n"); 1436 break; 1437 case XC_PRODUCT_ID_FW_NOT_LOADED: 1438 printk(KERN_INFO 1439 "xc5000: Successfully identified at address 0x%02x\n", 1440 cfg->i2c_address); 1441 printk(KERN_INFO 1442 "xc5000: Firmware has not been loaded previously\n"); 1443 break; 1444 default: 1445 printk(KERN_ERR 1446 "xc5000: Device not found at addr 0x%02x (0x%x)\n", 1447 cfg->i2c_address, id); 1448 goto fail; 1449 } 1450 1451 mutex_unlock(&xc5000_list_mutex); 1452 1453 memcpy(&fe->ops.tuner_ops, &xc5000_tuner_ops, 1454 sizeof(struct dvb_tuner_ops)); 1455 1456 return fe; 1457fail: 1458 mutex_unlock(&xc5000_list_mutex); 1459 1460 xc5000_release(fe); 1461 return NULL; 1462} 1463EXPORT_SYMBOL_GPL(xc5000_attach); 1464 1465MODULE_AUTHOR("Steven Toth"); 1466MODULE_DESCRIPTION("Xceive xc5000 silicon tuner driver"); 1467MODULE_LICENSE("GPL"); 1468MODULE_FIRMWARE(XC5000A_FIRMWARE); 1469MODULE_FIRMWARE(XC5000C_FIRMWARE); 1470